These are not solving land impact of human. We must have fewer human or live in smal space like in Tokyo and others city like it. Most human no have desire to do this. Batery take resources like lithium more than we have. Maybe Dyson swarm eating star energy output cause climate change of its own, fewer energy reaching earth surface. There is always impacts that human create. We only can for truly mitigate climate change with reducing human numbers. One action we take for to reduce impact create impact again in one other place. We swalow spider to catch fly and continue on each and again. One child policy is the forebest way for to accomplish.

> Human energy use that causes climate harms can be replaced with renewables

No, it can't.

This more extreme usonian gun and freedom idea. If government say you have only one child you hav xr15 rifle not help. you people no can be trust with guns, ability to have as many children as wanted, others. you try use them to continue kill planet. you no have freedom to keep breeding kill other country with climate change. US having more children is externality it not pay. the US days of telling world around and doing what desire is over.